安装依赖包

yum -y install gcc zlib-devel pcre-devel openssl openssl-devel    #安装依赖包

安装gcc套装：

yum install cpp
yum install binutils
yum install glibc
yum install glibc-kernheaders
yum install glibc-common
yum install glibc-devel
yum install gcc
yum install make
# 或
yum install cpp binutils glibc glibc-kernheaders glibc-common glibc-devel gcc make

升级gcc

yum -y install centos-release-scl
yum -y install devtoolset-9-gcc devtoolset-9-gcc-c++ devtoolset-9-binutils
# 或
yum -y install centos-release-scl devtoolset-9-gcc devtoolset-9-gcc-c++ devtoolset-9-binutils
scl enable devtoolset-9 bash 或 source /opt/rh/devtoolset-9/enable